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2 SheetsSheet 1.

(No Model.)

A. McD-OUGALL. BORING MACHINE.

No. 469,840. Patented Mar. 1, 1892.

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ii/65M Qvdlusmo 2- Shets-Sheet 2.

(Ne l/66161.)

A. MQDOUGALL. BORING MAGHINE.

?a.tented Mar. 1, 1892.

1 name:

a full, ciear, and exact daiicripiisii 0f ,veriixiozi, which Wiil euzibie aizher r mprop'uller or screw Wide a machine of the character iiiuht'ic-iieii LQPEGELFZGATIQEK ibrming oi To all whom i2) may mince;

Be it iiilmwn ihai: L Ammo Mai e GALL, a citizen of the United. ates Lhiiis and of iiiinnesotmhave invenied certain newzmii useful Improvements B0 o Yachines; and i do hereby declare the foliowing to he 1% m.- s siiiiied in the" art to which it apperiains t0 maize and use the sh ne.

My pre; eiit ihveniioi relates to an im proved machine for hor'iig holhs either 011 land 0r under Water for posts, piles, telegraph-poles, i'oumlaiions, wells, anti mining purposes.

The principal ohjesi 0i": my inrehiimi is is pmvide a very portable nmchin-s for thesa purposes'which can be operated very cheaply and wherein all dirt, rack, or material from the hole which is being fol-521943, Willi he removed during the operation of boring the same.

Anather object of my invention is to pr0- wherein all shaiting or zihachiinical appli- {H1005 for connecting the hem-igloo wiih the source of power are dispensed with.

Another object 01 my pres ht invention is the prodiletimi of such a nizwhine wheain tha boring-tool wili not he bf-iliiell iii CREE) an M- .iil'lictiilll is BiiiBGilIiif-TGH, hut Will come i0 rest aithhugh th-e smirco of power may continue to operate. 7

The prihc nai novelizi in my present iii-- YOlli'iOll QOllSlSi; 0i casing having iii oi il' 1- pipe by preference, a straight pipe passing (lawn thrmigh said casin 3 am: carrying a. worm 190? or equivalent Vic-e within iii- 3 lower end, lmrir heath said pipe and cmineui'eii 5; ovate-cl by the said "arm or oil (1m 20, 4?, pump or Other am; i Mus far fin-hing water ill said pipe, and a flexible pipe comma 5; said pump with Sitih straight pipe, :iil mlnpioil i0 operaie as will be more fiiliy descril ul and claimed herein.

Forabetter comprelmnsion of my invention 2 attention is directed to' the accompanyihg l drawings, forming ii part 0f this speciiiehiion, and in Which I Figure 1 is a sectional View of the :ipparatus; Fig. 2, an enlarged scciiomii viewof 1 form of horing'iool and the hperriiing-wm'm l' viil be evident carmsmmiing Filfl designated by the same ters of ldPKESLDiS a cylindrie casin ma ia 9i mei l. and. hav an fiilifil'g ifi and fiiifipilibd to sit fir .13; on "the :0 the Go hoie which haii'ig iifiied. This A is preferably prevideii with a Imzzle C for the =scharge of the warm the casing b it. should he understood, iZOWGVSi, thaiih'is diac-hargeqwzzie may be dispensed with, in which "case the water would discharge Quiz filireiigh the mp 01' the casing. if the ZiGZI'iiS G is used, it is prefiirahla 0 pmvide the easing; wiih a, cyiiii czfi erienhiwi re emu he no an eniarge head i may be made ii'ltfi; E, 01' it may be separaiec'i 0m cured. to the pipe in my siiiaaoie At the upper and iewer por ons 0 are the spiila in place in m to vithii'i the h i i may t for opera ctuaim' by sage (iii the WH-iei through the pipe changing the pitch of the worm 01' p the speed of {he smile can be reg l d A boring-tool. secured ii) the lower end of 11hr, shaft G, a hi 5!, diameter slightly smaller than the iiitgrior sf the casing; A. in Fig. 3 the form of baring- 3ml. iliiirt-rhteii is isimply ii weli-l nmvn hiii'r, mm .52: h i 'a. 1

and 2 the boring-tool consists simply of a circular plate having ears or lips cut or punched out therefrom, as shown,'and to which I make no especial'claim herein. The first form of 5 boring-tool is more advantageous than the latter form, inasmuch as it will feed itself into the material to be cut.

K is a pump placed at any suitable point and may be of any suitable construction.

IO steam-pump is preferable for the reason that a much more powerful stream of water can be thrown by this variety of pump than by any other. It should be understood that a pump may be dispensed with if there is a [5' suiiicient natural water-pressure to the necessary work. The pump K is connected to the pipe E by means of a flexible pipe L, which is preferably a rubber pipe, so that the said pipe E will be free to move up and down.

The operation of my improved device is as follows: lhe casing A is placed in position over the point where the hole is to be bored, and the pipe E is allowed to drop by its weight, so that the boring-tool J will rest on the ground. The pump K is now started, and water is pumped through the pipes L and E and head I and this water will escape up through the interior of the casingand out through the nozzle 0, as will be evident. As the water passes through themead F it. will cause the worm or propeller to revolve, and in this way the boring-tool will be operated and will bore into the earth to form the desired hole. The dirt which is cut up by the 1 boring-tool will nozzle 0 by the overflow of the water, and m this way there can be no accumulation of dirt.

It will therefore be seen that the water not only operates the boring-tool, but that it removes the dirt from within the hole which is being formed.

It will be evident that the device might be operated by pumping the water in through the nozzle 0 and allowing it to escape through the pipe E, and I would have it understood that this specification contemplates such modification.

Having now described myinvention,whatI claim as new therein, and desire to secure by Letters Patent, is as follows:

1. In a boring apparatus, the combination of a casing A, a pipe E, movable vertically within the same, a worm, propeller, or equivalent within said pipe and adapted to be operated by the downward flow of water through the same, and a boring-tool connected to said worm or equivalent, substantially as set forth.

2. In a boring apparatus, the combination of a casing A, a pipe E within the same, a worm, propeller, or equivalent within said pipe E, a boring-tool connected to said worm or equivalent, a pump K, and a pipe L, connecting the same and the pipe E, substantially. as set forth.

ALEXANDER ricpouenifin In presence ofv M. J. MULLIN, Cums. W. LELAND.

be carried out through the 35* 

